8个发光管来回流动，每个led亮500ms，灭500ms，灭时关闭蜂鸣器，一直重复下去
上传时间： 2017-07-28
上传用户：吴先森@
C # ChatBot 基于AIML C # ChatBot 基于AIML
上传时间： 2018-01-20
上传用户：hcedison
一中流水线结构的FFT，构建的一中新的FFT，基于流水线结构使得其运行速度更快，更适合实用。
标签： transform pipeline fourier fast
上传时间： 2018-03-26
上传用户：lpyaking
基于FPGA 的数字滤波器设计源代基于FPGA 的数字滤波器设计源代码基于FPGA 的数字滤波器设计源代码
上传时间： 2018-03-29
上传用户：18355095071
The 4.0 kbit/s speech codec described in this paper is based on a Frequency Domain Interpolative (FDI) coding technique, which belongs to the class of prototype waveform Interpolation (PWI) coding techniques. The codec also has an integrated voice activity detector (VAD) and a noise reduction capability. The input signal is subjected to LPC analysis and the prediction residual is separated into a slowly evolving waveform (SEW) and a rapidly evolving waveform (REW) components. The SEW magnitude component is quantized using a hierarchical predictive vector quantization approach. The REW magnitude is quantized using a gain and a sub-band based shape. SEW and REW phases are derived at the decoder using a phase model, based on a transmitted measure of voice periodicity. The spectral (LSP) parameters are quantized using a combination of scalar and vector quantizers. The 4.0 kbits/s coder has an algorithmic delay of 60 ms and an estimated floating point complexity of 21.5 MIPS. The performance of this coder has been evaluated using in-house MOS tests under various conditions such as background noise. channel errors, self-tandem. and DTX mode of operation, and has been shown to be statistically equivalent to ITU-T (3.729 8 kbps codec across all conditions tested.
标签： frequency-domain interpolation performance Design kbit_s speech coder based and of
上传时间： 2018-04-08
上传用户：kilohorse
TI生产的24位模数转换芯片ADS 1256的中文翻译资料，可以帮助使用者用更快的时间读懂芯片结构进而投入开发工作，缩短前期准备时间。
上传时间： 2018-04-27
上传用户：ffffdf
3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Further advancements for E-UTRA; LTE-Advanced feasibility studies in RAN WG4 (Release 9)
上传时间： 2018-04-28
上传用户：doforfuture
UTM投影正反转换程序 本程序是常用地图投影系列小程序之一，程序能用于不同基准面、单点及批量数据的UTM投影正、反转换，UTM与高斯-克吕格投影的相互转换，UTM正投影时的输入经纬度数据可以是度、度分及度分秒格式。
上传时间： 2018-05-15
上传用户：c258520314
已知信号x(t)=0.15sin(2*pi*f1*t)+sin(2*pi*f2*t)-0.1sin(2*pi*f3*t)，其中，f1=1Hz,f2=2Hz,f3=3Hz。采样频率为32Hz。（1）做32点FFT，求出其幅度谱；（2）做64点FFT，求出其幅度谱。
上传时间： 2019-01-04
上传用户：知复何言
Reconstruction- and example-based super-resolution (SR) methods are promising for restoring a high-resolution (HR) image from low-resolution (LR) image(s). Under large magnification, reconstruction-based methods usually fail to hallucinate visual details while example-based methods sometimes introduce unexpected details. Given a generic LR image, to reconstruct a photo-realistic SR image and to suppress artifacts in the reconstructed SR image, we introduce a multi-scale dictionary to a novel SR method that simultaneously integrates local and non-local priors. The local prior suppresses artifacts by using steering kernel regression to predict the target pixel from a small local area. The non-local prior enriches visual details by taking a weighted average of a large neighborhood as an estimate of the target pixel. Essentially, these two priors are complementary to each other. Experimental results demonstrate that the proposed method can produce high quality SR recovery both quantitatively and perceptually.
标签： Super-resolution Multi-scale Dictionary Single Image for
上传时间： 2019-03-28
上传用户：fullout
